Autori
Agostino Marcello Mangini, Maria Pia Fanti, Michele Roccotelli and Walter Ukovich
Abstract
Renewable Energy Sources (RESs) and Energy Storage Systems (ESSs) are the key to reduce pollutants produced by conventional fossil fuel power plants and to limit energy-purchasing costs. The concept of microgrids that can integrate and share both RESs and ESSs becomes appealing for the emerging smart grids. The microgrids allow enhancing power system reliability and minimizing the consumptions and costs in specific geographic areas, like districts, by providing cheaper and green energy to users. Indeed, the Microgrid Management (MM) can be seen as an optimization problem, which illustrates electricity networks interconnecting various energy generation elements (supply side) with energy consumption elements (demand side) and storage devices.
Our research activity addresses the problem of the energy management of cooperative district microgrids: the goal is maximizing the utilization of energy bought at the day-ahead energy market by avoiding the real-time purchase of additional energy. To this purpose the District Energy Management System (DEMS) controls the real-time energy consumption of the district and minimizes additional real-time energy requests. A Linear Programming problem is formulated and solved by the DEMS by optimally integrating renewable energy sources, storage systems and electric vehicles.
